On Wed, 2004-03-10 at 15:19, Innes Cathcart wrote: > Hi, > > I'm trying to generate a list of duplicate packages that are installed on my > system. I've been trying to use apt-get and rpm to do this. Sometimes apt > tells me there's lots of duplicate packages and other times it doesn't. How > can I do this? Thanks, Most of the package managers are configured to avoid duplicates (with the exception of some packages, like the kernel). This should give you what you want: rpm -q --qf "%{NAME}\n" -a | sort | uniq -d You will then need to query the outputted packages individually to find their version info. On my system, only kernel and gpg-pubkey are duplicates. Cheers, Ben